/* 7zFile.h -- File IO
   2009-11-24 : Igor Pavlov : Public domain */

#ifndef __7Z_FILE_H
#define __7Z_FILE_H

#ifdef _WIN32
    #define USE_WINDOWS_FILE
#endif

#ifdef USE_WINDOWS_FILE
    #include <windows.h>
#else
    #include <stdio.h>
#endif

#include "Types.h"

EXTERN_C_BEGIN

/* ---------- File ---------- */

typedef struct
{
    #ifdef USE_WINDOWS_FILE
    HANDLE handle;
    #else
    FILE* file;
    #endif
} CSzFile;

void File_Construct(CSzFile* p);
#if !defined (UNDER_CE) || !defined (USE_WINDOWS_FILE)
WRes InFile_Open(CSzFile* p, const char* name);
WRes OutFile_Open(CSzFile* p, const char* name);
#endif
#ifdef USE_WINDOWS_FILE
WRes InFile_OpenW(CSzFile* p, const WCHAR* name);
WRes OutFile_OpenW(CSzFile* p, const WCHAR* name);
#endif
WRes File_Close(CSzFile* p);

/* reads max(*size, remain file's size) bytes */
WRes File_Read(CSzFile* p, void* data, size_t* size);

/* writes *size bytes */
WRes File_Write(CSzFile* p, const void* data, size_t* size);

WRes File_Seek(CSzFile* p, Int64* pos, ESzSeek origin);
WRes File_GetLength(CSzFile* p, UInt64* length);


/* ---------- FileInStream ---------- */

typedef struct
{
    ISeqInStream s;
    CSzFile file;
} CFileSeqInStream;

void FileSeqInStream_CreateVTable(CFileSeqInStream* p);


typedef struct
{
    ISeekInStream s;
    CSzFile file;
} CFileInStream;

void FileInStream_CreateVTable(CFileInStream* p);


typedef struct
{
    ISeqOutStream s;
    CSzFile file;
} CFileOutStream;

void FileOutStream_CreateVTable(CFileOutStream* p);

EXTERN_C_END

#endif